Stone crusher



G.' E. KHIDER.

STONE CRUSHER.

APPLICATION FILED OCT- 7 1921.

Patented May 23, 1922.

F/G/ TL WON M M a 5. W mm STONE MACHINE (10., 031

HOLLIDAYSBURG, PENNSYLVANIA.

STONE CIR/USHER.

Application filed October '7, 1821.

A. primary object is to provide an improved mechanism for permitting the crusher or breaker plate to move away from the revolving disintegrating rotor when the material passing through the crusher is not susceptible of being readily crushed.

Another object of this invention is to provide a mechanism that is positive and reliable in action and consists of a minimum number of parts, each of which performs its respective function, in a practical and reliable manner.

A further object of the device is to provide a construction having a toggle joint that is adapted to be held closed by resilient means and which is operative only when substances that are not susceptible of being crushed between the disintegrator and the crusher plate pass through the crusher.

With these and other objects in View which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts, further pointed out, illustrated and claimed.

It will be readily understood by those skilled in the art to which this invention belongs that the same is susceptible to various changes and modifications without departing from the spirit or scope of the invention, but a preferred and practical embodiment of the invention is shown in the accompanying drawings in which Figure 1 is a side elevation partly in section, of a crusher having my improved construction embodied therein.

Figure 2 is a side elevation of the mechanism removed from the crusher.

Similar reference characters refer to similar parts throughout the several figures of the drawings.

In carrying the present invention into effect it is proposed to provide a novel construction which will automatically function to prevent the machine from being jammed Specification of Letters Patent.

NJ e),

ltatented May Serial No. 506,045.

when a piece of material which cannot be reduced becomes engaged between the disintegrator and the crusher plate. In other r-iords itis proposed to provide an arrangement whereby the crusher plate is cushioned in such a way that it will yield under the influence of the crushing action when hard pressure or material are encountered, thereby saving the machine from damage and permitting the crushing action to continue without interruption.

' As shown in the drawings it is proposed to embody the present invention over a machine having a disintegrator roll 1 and a crusher plate 2 pivotally supported as at 3 and having the side reinforcing flange -1- provided with an offset lug 5 for receiving the eye 6 of a connecting rod 7. V

The said connecting rod 7 constitutes a part of the present improvement, and the end 8 thereof opposite the eye 6 is provided with a socket 9 for receiving the relatively cylindrical end portion 10 of a motion transmitting link 11. The end 12 of the said motion transmittinglink opposite the end 10 is also cylindrical and fits in a socket 123 formed in the intermediate portion of a tensioning lever 1 and provides in effect a hinge or toggle joint between the rod and lever.

As will be observed from Figure 1 the tensioning lever 14 above referred to has arelatively cylindrical liearing end 15 for engaging in a suitable socket 16 in the machine. The said bearing 15 therefore provides a fulcrum for the lever 141, while the opposite end 16 thereof has connected thereto by means of the nut and eye bolt device 17, a flexible cushioning connection 18. The said flexible connection 18 is preferably guided over an idler pulley 19 or the like, and passes through the opening 20 in the wall 21 and is provided with acap 23 which is coupled with the flexible connection 18 by means of the eye bolt 24 or the like.

From the arrangement shown it will be apparent that the crusher or breaker plate 2 is connected with the improved cushioning means through the medium of the connecting rod 7, link 11, lever 14 and flexible connection 18. ll hen a piece of material which cannot be reduced becomes jammed or wedged between the disintegrator 1 and the plate 2, the connecting rod 7 will be moved to the right which will have the effect of causing the obliquely disposed link 11 to seek a substantially vertical position. As the link 11 becomes in eifect rotated on its own transverse axis by the shifting of the rod 7, its upper end 12 which engages in the socket 13 will cause the lever 14 to lift and thereby cause the end 16 to elevate and pull the flexible cushioning connection 18 against the tension of'the spring 22, thereby compressing the same. As soon as the piece of material which cannot be crushed is released the spring 22 will again act to restore the parts to their normal position shown in Figure 1.

' \Vithout further description it is thought that the many features and advantages of the present cushioning unit will be readily apparent and it will of course be understood that changes in the proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or the scope of the appended claims.

- l. A cushioning unit for crushers including in combination with the disintegrator roll and the breaker plate, a relatively horizontally disposed rod connected with the breaker plate, a lever having its fulcrum located at one end and a resilient connection at the other, and a motion transferring link arranged between the said rod and lever.

2. A cushioning unit for crushers including in combination with the disintegrator roll and the breaker plate, a relatively horizontally disposed rod connected with the breaker plate, a lever havingits fulcrum located at one end and a resilient connection at the other, an obliquely disposed motion transferring link arranged between the rod and the lever.

3. A cushioning unit for crushers including in combination with the disintegrator roll and the breaker plate, and a rod connected with the breaker plate, a lever pivoted at one end in the frame of the crusher, a spring connected with the opposite end of the lever, and a hinge element arranged between the rod and lever.

4. A cushioning unit for crushers including in combinationtwith a disintegrator roll and the breaker plate, a rod connected with the swinging end of the breaker plate and having its opposite end formed with a socket, a lever fulcrumed at one end inthe crusher frame and having an intermediate socket, a spring connected with the opposite end of the lever, and a motion transmitting link having cylindrical bearing ends respectively engaging in the sockets of the rod and lever.

A cushioning unit for crushers including in combination with a disintegrator roll and the breaker plate, a member connected with the breaker plate, a lever pivoted at one end, a cushioning spring connected with the opposite end of said lever, and a motion transferring element engaging with said member and with the intermediate portion of said lever.

In testimony whereof he affixes his signature.

GEORGE E. KRIDER, 

